ddns-update-style none; subnet 192.168.1.0 netmask 255.255.255.0  {    range 192.168.1.100 192.168.1.200;    option subnet-mask 255.255.255.0;    option broadcast-address 192.168.1.255;    option domain-name-servers 123.123.123.10, 123.123.123.20;    option routers 192.168.1.1;    host box1     {       hardware ethernet 00:50:AB:AB:AB:AB;       fixed-address 192.168.1.7;     }    host winbox1     {       hardware ethernet 00:06:CD:CD:CD:CD;       fixed-address 192.168.1.8;     [...]